- ifconfig "${IF_VETH_BRIDGETO}" up
- ip link add name "${IFACE}" type veth peer name "${IFACE}peer"
- ip link set "${IFACE}peer" up
- brctl addif "${IF_VETH_BRIDGETO}" "${IFACE}peer"
+ ifconfig "${IF_VETH_BRIDGETO}" up || exit 1
+ ip link add name "${IFACE}" type veth peer name "${IFACE}peer" || exit 1
+ ip link set "${IFACE}peer" up || exit 1
+ brctl addif "${IF_VETH_BRIDGETO}" "${IFACE}peer" || exit 1